Quote:
Originally Posted by PinkinPA 
 I'm noticing that a quite a few of my veggie plants are dying off. I've only seen ONE of those yellow lady bug looking bugs. What should I do?
I'm losing a watermelon, zucchini and pumpkin.   
I want to treat them with something till I get some neem this weekend. What should I do?
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Those are cucumber beetles, but they don't usually just make your plants up and die. They chew on the leaves, so you'd see holes everywhere. If that's not the type of damage you're seeing, maybe you need to look further to find the culprit?
Try this link for cucumber beetle control.
http://www.ghorganics.com/CucumberBeetles.htm one idea that jumped out was vacuuming them up.
Eta: They can be vectors for diseases like bacterial wilt. If that's what your plants have, controlling the beetles now won't cure them.